.addButton{
  border:1px solid #1890ff;
  border-radius: 50%;
  display: inline-block;
  text-align: center;
  width: 30px;
  height: 30px;
  line-height: 30px;
  font-size: 20px;

  color: #1890ff;
  position: absolute;
  top: 10px;
}